Subtract 6/42 from 2/27
2/27 - 6/42 is -13/189.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 42 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 27 × 14 = 378,
2/27 = 2 × 14/27 × 14 = 28/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
6/42 = 6 × 9/42 × 9 = 54/378 - Subtract the two like fractions:
28/378 - 54/378 = 28 - 54/378 = -26/378 - After reducing the fraction, the answer is -13/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/27-6/42 2/27-12/42 2/54-6/42 2/27-6/84 6/27-6/42 2/27-18/42 2/81-6/42 10/27-6/42 2/27-30/42 14/27-6/42